import AST as K -- K for Kaleidoscope
import Utils
+import Control.Monad
+import Control.Monad.Trans.Class
import Control.Monad.Trans.Reader
import Control.Monad.IO.Class
import Data.String
import qualified Data.Map as Map
import qualified Data.Text.Lazy.IO as Text
+import LLVM.AST.AddrSpace
import LLVM.AST.Constant
import LLVM.AST.Float
import LLVM.AST.FloatingPointPredicate hiding (False, True)
import LLVM.AST.Operand
import LLVM.AST.Type as Type
+import LLVM.Context
import LLVM.IRBuilder
+import LLVM.Module
+import LLVM.OrcJIT
+import LLVM.OrcJIT.CompileLayer
+import LLVM.PassManager
import LLVM.Pretty
+import LLVM.Target
import System.IO
import System.IO.Error
import Text.Read (readMaybe)
+data JITEnv = JITEnv
+ { jitEnvContext :: Context
+ , jitEnvCompileLayer :: IRCompileLayer ObjectLinkingLayer
+ , jitEnvModuleKey :: ModuleKey
+ }
+
main :: IO ()
-main = buildModuleT "main" repl >>= Text.hPutStrLn stderr . ("\n" <>) . ppll
+main =
+ withContext $ \ctx -> withHostTargetMachineDefault $ \tm ->
+ withExecutionSession $ \exSession ->
+ withSymbolResolver exSession (SymbolResolver symResolver) $ \symResolverPtr ->
+ withObjectLinkingLayer exSession (const $ pure symResolverPtr) $ \linkingLayer ->
+ withIRCompileLayer linkingLayer tm $ \compLayer ->
+ withModuleKey exSession $ \mdlKey -> do
+ let env = JITEnv ctx compLayer mdlKey
+ _ast <- runReaderT (buildModuleT "main" repl) env
+ return ()
+
+-- This can eventually be used to resolve external functions, e.g. a stdlib call
+symResolver :: MangledSymbol -> IO (Either JITSymbolError JITSymbol)
+symResolver sym = undefined
-repl :: ModuleBuilderT IO ()
+repl :: ModuleBuilderT (ReaderT JITEnv IO) ()
repl = do
liftIO $ hPutStr stderr "ready> "
mline <- liftIO $ catchIOError (Just <$> getLine) eofHandler
case readMaybe l of
Nothing -> liftIO $ hPutStrLn stderr "Couldn't parse"
Just ast -> do
- hoist $ buildAST ast
- mostRecentDef >>= liftIO . Text.hPutStrLn stderr . ppll
+ anon <- isAnonExpr <$> hoist (buildAST ast)
+ def <- mostRecentDef
+
+ llvmAst <- moduleSoFar "main"
+ ctx <- lift $ asks jitEnvContext
+ env <- lift ask
+ liftIO $ withModuleFromAST ctx llvmAst $ \mdl -> do
+ Text.hPutStrLn stderr $ ppll def
+ let spec = defaultCuratedPassSetSpec { optLevel = Just 3 }
+ -- this returns true if the module was modified
+ withPassManager spec $ flip runPassManager mdl
+ when anon (jit env mdl >>= hPrint stderr)
+
+ when anon (removeDef def)
repl
where
eofHandler e
| isEOFError e = return Nothing
| otherwise = ioError e
+ isAnonExpr (ConstantOperand (GlobalReference _ "__anon_expr")) = True
+ isAnonExpr _ = False
+
+jit :: JITEnv -> Module -> IO Double
+jit JITEnv{jitEnvCompileLayer=compLayer, jitEnvModuleKey=mdlKey} mdl =
+ withModule compLayer mdlKey mdl $
+ return 0
type Binds = Map.Map String Operand
K.Cmp LT -> fcmp OLT
K.Cmp GT -> fcmp OGT
K.Cmp EQ -> fcmp OEQ
+
+buildExpr (Call callee params) = do
+ paramOps <- mapM buildExpr params
+ let nam = fromString callee
+ -- get a pointer to the function
+ typ = FunctionType Type.double (replicate (length params) Type.double) False
+ ptrTyp = Type.PointerType typ (AddrSpace 0)
+ ref = GlobalReference ptrTyp nam
+ call (ConstantOperand ref) (zip paramOps (repeat []))